Microsoft's adCenter is now out of beta but the support team doesn't think so. You should read some of the reports at this or this and even this thread from WebmasterWorld Forums.
The first thread has six of six members complaining about how poor the adCenter customer support is. Here are some quotes;
If I had to rate adCenter support on a scale from 1-10 with 10 being best, I would be generous at giving them a 2.
Yes the telephone support people are horrific - I actually kind of feel bad for them because look how bad the product is. I'm just not going to call them anymore
Overall it has been a terrible experience. 1 outta 10.
Yeah this program has no business being in business in its' current state.
The second thread shows how an old help page had a number for pre-beta period for Singapore-English support. He called the number and got someone's, what appears to be, a Nextel cell phone voicemail box. That page has now been removed.
The final thread reports the help feature on the adCenter page does not work.
